Question

Hint: 180 *
1. Find the missing angle.
29
R
61
T

Answer 1

∠ R = 90°

Explanation:

The sum of the 3 angles in a triangle = 180° , that is

∠ R + ∠ S + ∠ T = 180° , substitute values

∠ R + 29° + 61° = 180°

∠ R + 90° = 180° ( subtract 90° from both sides )

∠ R = 90°